Home / 85,302.09-127,972.82-25,329.23

Finding the Fourth Proportional to 85,302.09, 127,972.82 and 25,329.23

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Solution

The fourth proportional to 85,302.09, 127,972.82 and 25,329.23 is: 37,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,302.09 : 127,972.82 = 25,329.23 : x
  2. Step 2: Convert to fraction form
    85,302.09/127,972.82 = 25,329.23/x
  3. Step 3: Cross multiply
    85,302.09x = 127,972.82 × 25,329.23
  4. Step 4: Simplify right side
    85,302.09x = 3,241,453,183.57
  5. Step 5: Solve for x
    x = 3,241,453,183.57/85,302.09
  6. Step 6: Final answer
    x = 37,999.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.